CO2 for food, beverages, welding or analysis

Carbon dioxide (CO2) serves a variety of key applications across industries. In its solid state (-78°C), carbon dioxide – also known as dry ice – is a cold source that can be used as a cryogenic fluid for processes such as tissue conservation deep-freezing and fire extinction, as it is non-combustible. Carbon dioxide emitted into the atmosphere by chemical and oil and gas operations can be captured and purified for use in many industries and application



Food & drinks

Carbonation of soft drinks, tapping of draft beer.
Food cryogenics: cooling and freezing of certain foods . Transport under controlled temperature.
Modified atmosphere packaging.

Craftsmen, entrepeneurs


Replacement of fluorinated fluids in refrigeration installations with CO 2  R-744 .
Smoke effects for events
Arc welding (TIG, MIG and MAG)

Anti-scale treatment for individuals

Environment and water treatment

Control and regulation of the pH of wastewater, regulation of the pH of swimming pools
Remineralisation of drinking water

Research and analysis

Supercritical phase chromatography

Mechanical / metal construction

Protection of welds against oxidation (ARCAL™)


Safety: Dry ice for fire extinguishers

Environment: mosquito control

Residential construction: anti-limestone treatment


Air Liquide Gas Encyclopedia

Gas Encyclopedia

Know more about the physical & technical properties of carbon dioxide

Find complete information on more than 60 molecules used in research, industry and health. You'll find a molecule comparison tool for lab use, a unit conversion tool, and 3D visualizations.

Safety data sheet smaller

Safety Documentation

Gas safety data sheets (MSDS)

Find the reference document you need.

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